CM__76er

I've had my 2020 AT4 for a few months now. I've been wondering what those noises are when I open any of the doors when the engine is off. Anyone know what's taking place to make those noises? They are kind of electronic whizzing noises. Also, after I turn off the engine and stay seated in the truck, after a few minutes I hear some other noises coming from the dash -- anyone know what those are? Thank you!

Before buying my 2020 AT4 I owned a 2003 GMC Sierra for nearly 17 years. I like my GMC trucks and these are minor complaints. To go along with those other minor complaints about the control knobs and the apparent weakness of the backs of the seats would be that it will take some getting used to having the majority of the sound from the speaker system coming from up front instead of the majority of the sound from the speaker system coming from the back. I've tried to tweak that with the fade and speaker controls, but there's no getting around the fact that the bigger speakers are up front. . . again, a minor complaint since it all still sounds great.

I agree. I’m searching for some black control knobs for my 2020 AT4. The only other complaint I have about the 2020 AT4 so far is that the backs of the driver and passenger seats seem vulnerable to puncture. I have three kids in forward facing car seats and they kick the backs of the seats all the time. There doesn’t seem to be much padding in the back of the seat and you can feel the electrical wiring components through the thin layer of material. I’m worried that slight pressure in the wrong spot will puncture the material on the back of the seat.